Set up blckit

Install the right layer for each surface you use.

Browser — Chrome, Edge, Arc

Install the Chrome extension

Covers ChatGPT, Claude, Gemini, Copilot, WhatsApp Web, Slack, Gmail, Outlook, Teams, Doximity, TigerConnect, and 12 more sites. Intercepts the send key before the message leaves your browser.

Add to Chrome View source

Load unpacked from source: Chrome → Extensions → Developer mode → Load unpacked → select blckit-extension/dist/

Verify it loaded

Open any supported site and check for the blckit icon in your toolbar.

Icon active = blckit is watching
Type ;; in any compose field to arm Shield mode
High-confidence PHI → auto-sealed on send
Low-confidence PHI → amber warning with Seal / Send anyway

Android — all apps

Install the blckit keyboard

The blckit keyboard sits at the OS level. It intercepts every message you type — WhatsApp, SMS, Slack, email, clinical apps — before the send key fires. No need for a separate extension per app.

Download on Play Store

Set blckit as your default keyboard

Settings → General Management → Keyboard list and default → set blckit as default.

Or tap the keyboard icon in your notification tray during any typing session. Shield mode: tap 🛡 in the keyboard status bar, or type ;;.

Clinical apps get auto-protection

Doximity, Epic Haiku, Epic Canto, TigerConnect, Spok, Athena, Dragon Medical — blckit detects these packages and automatically arms Shield mode on every field entry. Lower confidence threshold in clinical context catches names and partial MRNs regex can't.

iOS — iPhone / iPad

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iOS keyboard — in development

A Swift iOS keyboard extension with NanoTDF sealing is planned for Phase 4. Until then, use Safari with the Chrome extension on iPad (install via the iOS Chrome app), or use the web demo below on any device.

Developer — CLI + CI

Install the blckit CLI

Scan repos, seal .env files, and gate commits before secrets hit git.

# Install via cargo
cargo install blckit-cli

# Or download the binary
curl -L https://blckit.dev/install.sh | sh

Initialize vault and install git hook

blckit init
cd your-repo && blckit git install-hook

# Scan for secrets
blckit scan .

# Seal all findings in-place
blckit scan --fix .

# Export ledger for this PWA
blckit ledger export > my-ledger.jsonl

Export data to this dashboard

Export your ledger and vault metadata, then import them in the Ledger and Vault tabs of this dashboard.

# Export audit ledger (no secret values)
blckit ledger export > blckit-ledger.jsonl

# Export vault key list (names only — values stay local)
blckit vault export-meta > blckit-vault.json

Quick reference

Trigger	Effect	Platform
;;	Arm Shield mode — entire field sealed on send	Browser + Android
🛡 button	Toggle Shield mode	Android keyboard
high PHI	Auto-seal + toast (undo 3–10s)	Browser + Android
low PHI	Amber warning · Seal / Send anyway · 4s auto	Browser + Android
//blckit	Seal this line in VS Code	VS Code
pre-commit	Blocks commit if secrets in staged files	CLI + git hook